JD25A 3inch Rijiyar Ruwa DTH Hammer Hammer

A cikin hakowa da zagayowar iska, idan samuwar ya yi wuyar shiga ta ɗan ja, ana amfani da guduma DTH gabaɗaya.An samar da wannan kayan aiki don masana'antar hakar ma'adinai da ma'adinai.Ƙarshen 'kasuwanci' - maɓallin maɓalli - yana cike da maɓallan tungsten carbide na hemispherical, kuma tare da tashoshi da aka gina a ciki don ba da damar wucewar iska.Lokacin da aka danna guduma a ƙasa, ana tilasta bit ɗin cikin aikin guduma mai huhu (kamar rawar titin hanya) ta hanyar matsar da iskar da aka shayar da bututun.Sa'an nan, yayin da kayan aiki ke juyawa a cikin ramin, maɓallan suna aiki a duk faɗin tushe na rijiyar.Yawancin guduma suna jujjuyawa a cikin saurin juyi 20 zuwa 30 a minti daya, kuma ana iya bugun busa a adadin har zuwa 4000 a cikin minti daya.Ana zubar da tarkace (busa) daga cikin rami a ƙarshen kowane bututun rawar soja.Hammers na DTH sun fi tasiri a cikin manyan duwatsu masu wuya irin su limestones ko basalt;gyare-gyare masu laushi, masu laushi masu kyau suna haifar da toshe magudanar iska ko cushe faifan piston.

Duk da haka, hamarar DTH suna da tsada sosai kuma don haka shahara sosai tare da dillalan kasuwanci.